Hi All, I have the most puzzling problem.
I have built two cnc routers I used the same routout controls and the same stepper motors and both machines work fine until I noticed that one of the machines
when cutting circles seems to step around the circle where the other machine cuts with a smooth action.
On trials I did cutting the same size circle.
The machine that cuts in a smooth action cuts 5 times faster using exactly the same settings as the other machine.
Now here is the funny part when I cut a rectangle of the same size the machine that cuts fastest on a circle is now the slowest, not by as much though
I use a PC on the one that cuts a circle with the stepping motion running windows XP the other machine is a laptop running windows 2000
I have switched machines with the computers and the results transfered to the other machine.
So the laptop works fine on both machines
The PC works both machines but with the same result when cutting circles ie slower and with a stepping motion
The only difference I can see is the laptop is running windows 2000 and the PC windows XP and has a lot more computing power than the laptop
Any ideas as to the problem
Thanks
Ray